The perinatal and infant mortality in the sample of all children born in the South Moravian
Region of Czechoslovakia in the years 1970--1976 was studied. The total number of births …

Some epidemiologic characteristics of twin pregnancies and twin infants have been
reviewed. We found that twins are prone to be born prematurely and have lower birth …

The records of 10,204 pairs of twins born in Norway 1967–1984 in the Norwegian Birth
Registry were examined. The probabilities of stillbirth, neonatal death and post-neonatal …

The neonatal morbidity and mortality rate of 335 twin pairs born during the years 1965‐1973
was investigated. 649 twins were born alive. 29% of the twins were preterm. 31% of the …

During the five‐year period 1964–68 96733 births were registered in the 28 hospitals
equipped with maternity facilities in the Uppsala hospital region. Of these babies, 1636 were …

The study is based on two birth cohorts from the years 1966 and 1985–1986. Perinatal
mortality of twins has fallen over 20 years from 9.2% to 3.1%. Improvement is particularly …

In one regional perinatal network between 1982-1987, 101,506 women delivered infants
greater than 500 g, of which 1253 were twin pregnancies (1.2%). This latter group was …

Many specific factors are believed to influence the perinatal mortality in twins. For some of
them, especially zygosity, no series of cases of sufficient size and with full knowledge of the …

The increasing number of twin (and higher order) births is a matter of national concern for
two reasons: First, the differential rates of preterm (< 37 weeks) delivery and low birthweight …

A study of perinatal mortality in twins has been carried out concurrently in Ibadan, Nigeria,
and Aberdeen, Scotland. In both areas perinatal mortality rates have been found to be four …